/*
 * Copyright (c) JForum Team
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, 
 * with or without modification, are permitted provided 
 * that the following conditions are met:
 * 
 * 1) Redistributions of source code must retain the above 
 * copyright notice, this list of conditions and the 
 * following  disclaimer.
 * 2)  Redistributions in binary form must reproduce the 
 * above copyright notice, this list of conditions and 
 * the following disclaimer in the documentation and/or 
 * other materials provided with the distribution.
 * 3) Neither the name of "Rafael Steil" nor 
 * the names of its contributors may be used to endorse 
 * or promote products derived from this software without 
 * specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT 
 * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, 
 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 
 * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE 
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 
 * IN CONTRACT, STRICT LIABILITY, OR TORT 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
 * 
 * This file creation date: Mar 10, 2003 / 8:49:51 PM
 * The JForum Project
 * http://www.jforum.net
 */
package net.jforum.view.admin;

import java.util.ArrayList;
import java.util.List;

import net.jforum.dao.CategoryDAO;
import net.jforum.dao.DataAccessDriver;
import net.jforum.dao.GroupSecurityDAO;
import net.jforum.entities.Category;
import net.jforum.repository.ForumRepository;
import net.jforum.repository.RolesRepository;
import net.jforum.repository.SecurityRepository;
import net.jforum.security.PermissionControl;
import net.jforum.security.Role;
import net.jforum.security.RoleValue;
import net.jforum.security.RoleValueCollection;
import net.jforum.security.SecurityConstants;
import net.jforum.util.I18n;
import net.jforum.util.TreeGroup;
import net.jforum.util.preferences.TemplateKeys;
import net.jforum.view.admin.common.ModerationCommon;

/**
 * ViewHelper for category administration.
 * 
 * @author Rafael Steil
 * @version $Id: CategoryAction.java,v 1.25 2006/12/07 23:34:04 rafaelsteil Exp
 *          $
 */
public class CategoryAction extends AdminCommand {
    private CategoryDAO cm = DataAccessDriver.getInstance().newCategoryDAO();

    // Listing
    public void list() {
	this.context.put("categories", DataAccessDriver.getInstance()
		.newCategoryDAO().selectAll());
	this.context.put("repository", new ForumRepository());
	this.setTemplateName(TemplateKeys.CATEGORY_LIST);
    }

    // One more, one more
    public void insert() {
	this.context.put("groups", new TreeGroup().getNodes());
	this.context.put("selectedList", new ArrayList());
	this.setTemplateName(TemplateKeys.CATEGORY_INSERT);
	this.context.put("action", "insertSave");
    }

    // Edit
    public void edit() {
	this.context
		.put("category", this.cm.selectById(this.request
			.getIntParameter("category_id")));
	this.setTemplateName(TemplateKeys.CATEGORY_EDIT);
	this.context.put("action", "editSave");
    }

    // Save information
    public void editSave() {
	Category c = new Category(ForumRepository.getCategory(this.request
		.getIntParameter("categories_id")));
	c.setName(this.request.getParameter("category_name"));
	c.setModerated("1".equals(this.request.getParameter("moderate")));

	this.cm.update(c);
	ForumRepository.reloadCategory(c);

	new ModerationCommon().setForumsModerationStatus(c, c.isModerated());

	this.list();
    }

    // Delete
    public void delete() {
	String ids[] = this.request.getParameterValues("categories_id");
	List errors = new ArrayList();

	if (ids != null) {
	    for (int i = 0; i < ids.length; i++) {
		if (this.cm.canDelete(Integer.parseInt(ids[i]))) {
		    int id = Integer.parseInt(ids[i]);
		    Category c = this.cm.selectById(id);
		    this.cm.delete(id);

		    ForumRepository.removeCategory(c);
		} else {
		    errors.add(I18n.getMessage(I18n.CANNOT_DELETE_CATEGORY,
			    new Object[] { new Integer(ids[i]) }));
		}
	    }
	}

	if (errors.size() > 0) {
	    this.context.put("errorMessage", errors);
	}

	this.list();
    }

    // A new one
    public void insertSave() {
	Category c = new Category();
	c.setName(this.request.getParameter("category_name"));
	c.setModerated("1".equals(this.request.getParameter("moderated")));

	int categoryId = this.cm.addNew(c);
	c.setId(categoryId);

	ForumRepository.addCategory(c);

	String[] groups = this.request.getParameterValues("groups");
	if (groups != null) {
	    GroupSecurityDAO gmodel = DataAccessDriver.getInstance()
		    .newGroupSecurityDAO();
	    PermissionControl pc = new PermissionControl();
	    pc.setSecurityModel(gmodel);

	    Role role = new Role();
	    role.setName(SecurityConstants.PERM_CATEGORY);

	    for (int i = 0; i < groups.length; i++) {
		int groupId = Integer.parseInt(groups[i]);
		RoleValueCollection roleValues = new RoleValueCollection();

		RoleValue rv = new RoleValue();
		rv.setValue(Integer.toString(categoryId));

		roleValues.add(rv);

		pc.addRoleValue(groupId, role, roleValues);
	    }

	    SecurityRepository.clean();
	    RolesRepository.clear();
	}

	this.list();
    }

    public void up() {
	this.processOrdering(true);
    }

    public void down() {
	this.processOrdering(false);
    }

    private void processOrdering(boolean up) {
	Category toChange = new Category(ForumRepository.getCategory(Integer
		.parseInt(this.request.getParameter("category_id"))));

	List categories = ForumRepository.getAllCategories();

	int index = categories.indexOf(toChange);
	if (index == -1 || (up && index == 0)
		|| (!up && index + 1 == categories.size())) {
	    this.list();
	    return;
	}

	if (up) {
	    // Get the category which comes *before* the category we want to
	    // change
	    Category otherCategory = new Category(
		    (Category) categories.get(index - 1));
	    this.cm.setOrderUp(toChange, otherCategory);
	} else {
	    // Get the category which comes *after* the category we want to
	    // change
	    Category otherCategory = new Category(
		    (Category) categories.get(index + 1));
	    this.cm.setOrderDown(toChange, otherCategory);
	}

	ForumRepository.reloadCategory(toChange);
	this.list();
    }
}
